Focusing infrared laser beams on targets in space without using adaptive optics

Details Focusing infrared laser beams on targets in space without using adaptive optics Focusing infrared laser beams on targets in space without using adaptive optics

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991spie.1408..119m&link_type=abstract

In: Propagation of high-energy laser beams through the earth's atmosphere II; Proceedings of the Meeting, Los Angeles, CA, Jan.

Physics

Optics

Atmospheric Optics, Focusing, Infrared Lasers, Infrared Telescopes, Laser Beams, Light Transmission, Image Resolution, Infrared Imagery, Point Spread Functions, Seeing (Astronomy)

Scientific paper

A prediction is made that, for small values of turbulence (L sub 0) in the range of 20-40 cm, ground-based laser beams at near infrared can be focused to diffraction limited accuracy on targets in space without using adaptive optics or other wavefront correction procedures. It is found that, at infrared wavelengths, resolution is more likely to be limited by the telescope size and aberrations than by atmospheric turbulence. By building large enough telescopes to diffraction limited standards rather than currently accepted standards which fall well short of this limit, there is almost no limit to achievable resolution.

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